Q1. Fill in the blanks.
We are able to bend or rotate our body in
places where two parts of our body seem to be joined together. These places are
We are able to bend or rotate our body only
Bones and cartilage forms skeleton
of human body.
frame and shape to our body and helps in movement.
In a pivotal joint a cylindrical
bone rotates in a ring.
images are used to find out about any possible injuries that might have
happened to the bones.
viii. Our skeleton is made up of many bones,
joints and cartilage.
The rounded structure snail carries on its
back is called shell.
Fins on the body of
fish mainly help to keep the balance of their body.
Snakes have a long backbone.
Snails move with the help of a muscular
Bones cannot be bent. True
Hinge Joint allows movement in all
Elbow has fixed joint. False
Bone in our arm is joined to our shoulder
by ball and socket joint. True
The joint between the upper jaw and rest of
head is moveable. False
Bones in our body forms framework to give
shape to our body. This framework is known as skeleton. True
Ribs join the chest bone and back bone
together to form box called skeleton. False
viii. The skull is made of many bones joined
ix. Cartilage is also found in the joints of
the body. True
Cockroaches have three pair of wings
attached to breast. False
The snake moves forward very fast and not
in a straight line. True
Q3. Write name of two animals which can move without bones.
Snail and Earthworm
Q4. Write three animals that have streamlined body.
Fish, Whale and Birds
Q5. Name one animal which can walk and climb as well as fly in
Q6. Name two birds which can swim in water.
Ducks and Swans
Q7. Name an aquatic animal whose skeleton is made entirely of
Q8. Where is cartilage found?
Cartilage is found in joints and ear.
Q9. What is cavity in bones?
Cavity is the hollow space in the bones.
Q10. Which organs are protected by the
Ans. Heart and lungs are protected by the rib cage.
Q11. What are ribs?
The ribs are thin, flat, curved bones that form the rib cage.
Q12. What is skull?
The skull is made up of many bones joined together.
Q13. Name the organ which help cockroach in walking.
Cockroaches have three pairs of legs. These help in walking.